Figure 1

Embedding. Sketch of the the parameterization ϕ = ℝ^{N - M}→ V ⊂ ℝ^N, in a simple case where N = 3 and M = 1. The mass balance equations defined in Equation 2 define the hyperplane V and the set of inequalities defined in Equation 3 restrict V to polytope Π indicated as the grey triangle in the left part of the figure. The application ϕ map the full-dimensional counter-image of Π (the grey triangle on the right indicate with U) onto Π.